Refugees United and Ericsson are hosting a series of hackathons in Cairo, Nairobi and San Francisco to develop new mobile solutions to help refugees locate missing family members.

Refugees United is an online service to connect displaced people with their missing relatives. Nearly 200,000 refugees have registered on the service so far, and their goal is to reach 1 million by the end of 2015.

A jury will select two finalists from each Global Hack for Good location. On World Refugee Day, June 20, 2013, three winners will be selected. The prize is a trip to Kenya to test their prototypes in Kakuma refugee camp.

• The hack in Cairo: May 31-June 1, 2013
• The hack in San Francisco: June 8-9, 2013
• The hack in Nairobi: June 15-16, 2013